"Spiritplumber" from Robots Everywhere (http://robots-everywhere.com) has been doing some amazing work on electronics for OpenROV. His latest development has been a way to make off-the-shelf brushless hobby motors able to withstand running in saltwater for long periods of time. Here is a short video he's made demonstrating the modified motors. For more information about Robots Everywhere and what they do, visit their website. Great job Spiritplumber!!